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- Title
Preparation of Water-Insoluble Silk Fibroin Films. Study of Their Structure and Properties.
- Authors
Nashchekina, Yu. A.; Konygina, V. S.; Popova, E. N.; Kodolova-Chukhontseva, V. V.; Nashchekin, A. V.; Yudin, V. E.
- Abstract
Conditions for obtaining water-insoluble silk fibroin in the form of films have been worked out. Using optical microscopy, a change in the surface morphology of the films was demonstrated due to a structural transition to a coarsely fragmented state as a result of the treatment of the films with methyl alcohol. The conformational transition of silk fibroin from the disordered structure of the untreated film to the β-folded structure was confirmed by the FTIR spectroscopy method. The glass-transition temperature of the native film equal to 216°C was determined by the method of differential scanning calorimetry. A study of the mechanical properties of silk fibroin films in a liquid medium showed that their strength decreases and elasticity increases by almost 15 times compared with tests of the same films in a dry state.
- Publication
Technical Physics, 2022, Vol 66, Issue 4, p297
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/S1063784222050073